The nature of the IGM

Details The nature of the IGM The nature of the IGM

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...142..150k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 142, no. 1, Jan. 1985, p. 150-156.

Astronomy and Astrophysics

Astrophysics

9

Absorption Spectra, Astronomical Models, Galactic Evolution, Galactic Structure, Intergalactic Media, Quasars, Emission Spectra, Galactic Clusters, Galactic Nuclei, Lyman Alpha Radiation, Metallicity, X Ray Sources

Scientific paper

The authors interpret the concentric systems of luminous arcs seen around many large galaxies as (partial) filamentary shells ejected at supersonic speeds by their nucleus during active stages. The filaments develop a core-halo structure, with hydrogen-deficient cores and extended metal-poor halos. Such giant filamentary shells can at the same time explain the sharp absorption line systems in quasar spectra, both Lyα and metal lines, and the X-ray findings of a metal-enriched intracluster medium. The proposed filaments coexist in pressure equilibrium with a galactic halo and the ambient hot IGM.

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